PURPOSE:To provide a spring steel material of which fatigue resistance is improved, by a method wherein the Al content in spring steel with a specific composition is adjusted to a small amount and the amount of oxygen in steel is prescribed to lower the concn. of Al2O3 in oxide ...
PURPOSE:To provide a spring steel material of which fatigue resistance is improved, by a method wherein the Al content in spring steel with a specific composition is adjusted to a small amount and the amount of oxygen in steel is prescribed to lower the concn. of Al2O3 in oxide inclusion...
24 male subjects (age: 24,8±3,8; height: 182,8±7,2 cm; weight: 82,5±9,9 kg) were evenly (n = 6) assigned to the following four different resistance exercise (RE) groups: hypertrophy- (HYP), strength endurance- (SE), maximum power- (MAX) at the subjects' 10, 25 and 3 ...
fatigue resistance of the Cu–Cu joints is enhanced significantly. Failure analysis shows that cracks propagation was retarded in the Cu joints without the original bonding interface, and the electrical resistance of the joints did not increase even after 1000 cycles of TCT. Finite element analysis ...
New methods of manufacturing coiled tubing result in increased useful life of the coiled tubing string by creating an enhanced strip-to-strip weld zone having load bearing and/or fatigue resistance properties substantially equal to or greater than the load bearing and/or fatigue resistance properties...
The high frequency mechanical impact (HFMI) treatment has the potential of improving the fatigue resistance of welded steel joints and bring hope of safer lightweight structures Marquis and Barsoum [1]. However the treatment may still have its limitations at this stage when it comes to service ...
on cognitive function40,43. Additionally, resistance training has also demonstrated favorable outcomes in measures of reasoning44and exergaming has been found to improve cognitive function45. Furthermore, PA has proven mental health benefits, reducing morbidity and mortality and promoting improved sleep42...
Since more and more heavily loaded components, e.g., automotive engines and transmissions, are produced by PM methods, studying the fatigue behavior will be increasingly important as well as, based on the findings, improving the fatigue resistance. For the PM tool and aerospace materials, optimizi...
a frequency of 17 kHz, power of 1000 W and amplitude of 80 µm on PBF-LB AlSi10Mg resulted in remarkable porosity reduction and surface hardening and also induced high surface compressive residual stress compared to the initial tensile stress leading to notable corrosion resistance improvement31....
Steels are heavily used in infrastructure and the transportation industry, and enhancing their fatigue resistance is a major challenge in materials engineering. In this study, by introducing a gradient microstructure into 304 austenitic steel, which is one of the most widely used types of stainless ...